The Scandinavian Remedy: The Replaced and Forgotten Midsummer Celebration

On Wikipedia you can read the following about Midsummer in Denmark:

"In Denmark, the solstitial celebration is called Sankt Hans aften ("St. John's Eve"). It was an official holiday until 1770, and in accordance with the Danish tradition of celebrating a holiday on the evening before the actual day, it takes place on the evening of 23rd of June. It is the day where the medieval wise men and women (the doctors of that time) would gather special herbs that they needed for the rest of the year to cure people.

It has been celebrated since the times of the Vikings by visiting healing water wells and making a large bonfire to ward away evil spirits. Today the water well tradition is gone. Bonfires on the beach, speeches, picnics and songs are traditional, although bonfires are built in many other places where beaches may not be close by (i.e. on the shores of lakes and other waterways, parks, etc.) In the 1920s a tradition of putting a witch made of straw and cloth (probably made by the elder women of the family) on the bonfire emerged as a remembrance of the church's witch burnings from 1540 to 1693. This burning sends the "witch" away to Bloksbjerg, the mountain 'Brocken' in the Harz region of Germany where the great witch gathering was thought to be held on this day.

Holger Drachmann and P. E. Lange-Müller wrote a midsommervise (Midsummer hymn) in 1885 called "Vi elsker vort land..." ("We Love Our Country") that is sung at every bonfire on this evening."

To have bonfires and visiting wells on the evening of Sankt Hans were in older times a tradition in Scania as well.

In Lund it was pretty common long into the 19th century. In northern Lund there is an area called Sankt Hans were the people in Lund and surroundings would walk to this evening every year. There even was a offering- or healing well, with huge erected sculpted logs around it, where water would be flowing well into the middle of the 20th century.

The area of Sankt Hans in Lund was then transformed into Sankt Hans Backar (The hills of St. John's), affectingly called "Monti Composti" and the well disappeared. The water was simply cut off. The well should have been situated somewhere in what is now Sankt Hans park or in the residential area that bear names after the shooting range that used to be here.

I grew up in this area, but I knew nothing about it until now.

How can a tradition with bonfires just like that in Denmark just die in Scania?

Furthermore, how is it that this Scanian/Danish midsummer has been de facto replaced by a tradition mainly coming from Dalarna?

Source: Lund Norrut, Årsskrift 71, 1989, Föreningen Gamla Lund